(From l. to r.) Naeem Khan, Donna Karan, Norma Kamali, Tommy Hilfiger, DVF Diane Von Furstenberg, and Nanette Lepore showcase specially designed mannequins as part of 'Sidewalk Catwalk'.Broadway will soon be transformed into a runway.Beginning Monday, mannequins decked by dozens of top designers will be installed in the Fashion District for the free exhibit "Sidewalk Catwalk." They'll be covered up till Thursday, when they'll be unveiled to the public and remain on display through Sept. 3.A sneak peek reveals that the mannequins are just as diverse as the designers who dressed them. For instance, while Jason Wu's is draped in a strapless beige dress and simple black belt you could easily imagine on a runway model, others are far more outrageous.Betsey Johnson put the finishing touches on her fluorescent pink mannequin by scribbling on it with a black Sharpie. It's decked with messages thanking her friends and family for support, photos of her daughter and grandkids, and FDNY and NYPD emblems.But the belt is the best feature, lined with tubes that'll be filled with fresh flowers."A runway model gets about eight seconds of attention, but she'll get two months' worth," says Johnson of her girl.After "Sidewalk Catwalk" runs its course, the mannequins will be auctioned off. Proceeds will go to Materials for the Arts, which donates art supplies to local schools and nonprofits. But they'll have plenty of time in the spotlight.Read more: NYDaily News